Engineering Commons^™

Indoor Air Monitoring Of Ethanol And Benzene In A Pilot Winery Using Active Sampling, Andrew I. Kaneda

Master's Theses

Acute indoor concentrations of benzene and ethanol were evaluated in the California Polytechnic State University San Luis Obispo’s pilot winery workroom. Air samples were collected during four different wine-making activities: fermentation, fermentation with Brix content testing, post-alcoholic fermentation pressing, and storage/finishing. Average workroom benzene concentrations ranged from 0.05 to 0.12 mg/m³. Ethanol concentrations in the winery workroom varied with the activity, ranging from 0.9 to 12 mg/m³. Pressing and fermentation with Brix content testing both led to higher indoor ethanol concentrations than fermentation without Brix content testing and storage/finishing.

Tracer gas decay air exchange tests were …

Cichlid Size Vs Flow Rate, Amy E. Naumovski

STAR Program Research Presentations

Cichlids are a diverse group of fish that are known for their prenatal and postnatal care of their eggs and frys (baby fish). This unique characteristic creates a limitation on the amount of eggs a cichlid can lay and protect, which is particulalry effected by the size of the eggs. Cichlids have a large variance in their egg size, which correlates to a large variance in their fry size. This project explores the trade offs cichlids make in egg size and fry size by specifically testing the ability of varying sized cichlids to swim in different flow rates. This could …

Implementation Of Blockchain Technology In The Construction Industry, Steven Graham

Construction Management

In general, the construction industry has been pretty resistant to change. While most industries have gained in productivity over the years through implementation of new technologies and other factors, construction industry productivity has been on a steady decline since the 1960s. Even though there are a multitude of reasons for this, including more complex building types and a decline in the workforce, the major problem holding construction back are project management issues and alienation of project stakeholders in the construction process. Some improvements have been made to help with collaboration between parties, like BIM (building information modeling) and project management …

Logistics And Funding Plan For The Simpson Strong-Tie Lab Crane, Arya Ghourchian

Construction Management

In the recent years, there has been interests regarding an overhead crane to be erected inside of Cal Poly Simpson Strong Tie Lab (Building 187). This under running single girder crane system will be used for construction classes, and to lift heavy equipment. The erection of this 2 Ton indoor crane will be crucial to provide modular pieces, for whom that lost their homes due to the California fires. Additionally, there has been previous senior projects researches; reference attached preconstruction services, and a full structural analysis of SST Laboratory. I am in charge of collecting information regarding: Bid Estimate, Advertisement …

The Influence Of Of Company Culture On Employee Satisfaction At Holder Construction: A Case Study, Callie Alexander

Construction Management

Since being founded in 1960, Holder Construction has grown to do work all across The United States and internationally as well. Today, repeat clients are what drive Holder’s core markets and provide eighty five percent of the work that Holder performs. The associates at Holder Construction believe their success stems from the company’s culture. The “Holder Way” is a slogan that encompasses all cultural attributes that Holder Construction expects their associates to embody. This case study evaluates Holder Construction’s effectiveness of their company’s cultural training in regards to employee satisfaction and fulfillment. Are these employees truly living out what is …

Osha-30 Interactive Laboratory Course, Matthew Bramlett

Construction Management

This course is aimed to give the students of the Construction Management (CM) department a more in depth knowledge on topics covered in the online OSHA-30 hour safety course. The online focuses on a wider range of topics that are covered in the OSHA-10 hour course that students are required to complete in CM 413: Jobsite Management, such as hazard communication, OSHA inspection procedures, industrial hygiene & bloodborne pathogens, and much more. The course will also include topics outside the scope of the 30-hour class such as: heavy equipment inspections, rigging safety and techniques, challenges of working in the marine …

Reducing Energy Use In Excavators With Biodiesel, Omeed Abolfathi

Construction Management

In assessing the life-cycle cost of a building, the operation energy and construction energy are considered. The operation energy constitutes 90 to 95 percent of the lifetime energy use of a building. Concern over reducing operation energy has led to advancements where many buildings can now be considered net zero. While considerable advancements were made in achieving net zero in the operation, construction energy use has largely remained the same. To achieve net zero for the entire life-cycle of the building, construction energy consumption needs to be reduced. Excavators are one of the most popular pieces of construction equipment. They …